How would I convert a soup recipe for a pressure cooker?
Make sure that your ingredients all fit below the pressure cooker’s “maximum fill” line; overloading a pressure cooker is dangerous. That said, if you’re making a broth, you really can’t overcook it. Overcooking vegetables in broth makes them mushy, but you want them to turn to mush because you want all their flavors in the broth. But in general, a soup that simmers for about 40 minutes on the stove will be done after 5-6 minutes of high pressure cooking. Look for books by Lorna Sass to provide the formulas and recipes you’re seeking, because it really does depend on what you’re cooking. My favorite is making risotto with 5 minutes of high pressure.